Description Usage Arguments Details Value Author(s) References

Primarily an internal function for `phyl.pca`

; this can be used to compute the phylogenetic trait variance-covariance matrix given a phylogenetic VCV, lambda, and a data matrix. Should not be confused with `vcv.phylo`

in the "ape" package (although one of the objects returned is the output of `vcv.phylo`

).

1 |

`lambda` |
value for |

`X` |
data matrix. |

`C` |
matrix containing the height above the root of each pair of species in the tree. Typically this will have been produced by calling |

Do not use unless you know what you're doing.

A list containing three elements, as follows: `C`

, the matrix `vcv.phylo`

transformed by `lambda`

; `R`

, the among trait variance-covariance matrix for the data in `X`

; and `alpha`

, a vector of ancestral states at the root node of the tree.

Liam Revell [email protected]

Revell, L. J. (2012) phytools: An R package for phylogenetic comparative biology (and other things). *Methods Ecol. Evol.*, **3**, 217-223.

liamrevell/phytools documentation built on Nov. 22, 2018, 5:21 p.m.

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